2004 GMC YUKON XL DENALI tire pressure

Instrument Panel Overview...............................3-4
Hazard Warning Flashers................................3-6
Other Warning Devices...................................3-6
Horn.............................................................3-7
Tilt Wheel.....................................................3-7
Turn Signal/Multifunction Lever.........................3-7
Exterior Lamps.............................................3-14
Interior Lamps..............................................3-17
Accessory Power Outlets...............................3-18
Ashtrays and Cigarette Lighter........................3-19
Climate Controls............................................3-20
Dual Automatic Climate Control System...........3-20
Outlet Adjustment.........................................3-26
Rear Climate Control System.........................3-27
Climate Controls Personalization.....................3-29
Warning Lights, Gages and Indicators.............3-30
Warning Lights, Gages, and Indicators.............3-30
Instrument Panel Cluster................................3-31
Speedometer and Odometer...........................3-32
Tachometer.................................................3-32
Safety Belt Reminder Light.............................3-32Air Bag Readiness Light................................3-32
Passenger Air Bag Status Indicator.................3-34
Charging System Light..................................3-35
Voltmeter Gage............................................3-36
Brake System Warning Light..........................3-36
Anti-Lock Brake System Warning Light.............3-37
Traction Off Light..........................................3-38
Engine Coolant Temperature Gage..................3-38
Transmission Temperature Gage.....................3-39
Tire Pressure Light.......................................3-40
Malfunction Indicator Lamp.............................3-40
Oil Pressure Gage........................................3-43
Security Light...............................................3-44
Cruise Control Light......................................3-44
Tow/Haul Mode Light....................................3-44
Fuel Gage...................................................3-45
Low Fuel Warning Light.................................3-45
Driver Information Center (DIC).......................3-46
DIC Operation and Displays...........................3-46
DIC Warnings and Messages.........................3-57
Section 3 Instrument Panel
3-1

·Low transmission ¯uid level
·High transmission ¯uid level
·Restricted air ¯ow to the radiator and the auxiliary
transmission oil cooler (if equipped).
A temporary solution to hotter transmission operating
temperatures may be to let the transmission cool down.
If the transmission is operated at higher temperatures
on a frequent basis, see
Scheduled Maintenance
on page 6-4for the proper transmission maintenance
intervals.
Tire Pressure Light
If your vehicle is equipped
with the Tire Pressure
Monitor system, this light
will come on if the
system detects low tire
pressure.
A CHECK TIRE PRESSURE DIC message will
accompany the light.
This light will also come on for a bulb check when the
vehicle is started.See
Tire Pressure Monitor System on page 5-64for
more information.
For more information on the proper tire pressure, see
Loading Your Vehicle on page 4-44. For more
information on your tires, seeTires on page 5-54.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment. The Check Engine light comes on to
indicate that there is a problem and service is required.
Malfunctions often will be indicated by the system
before any problem is apparent. This may prevent more
3-40

BUCKLE PASSENGER
If your vehicle is equipped with the passenger sensing
system, this message reminds you to buckle the
passenger's seatbelt. See
Passenger Sensing System
on page 1-81. This message will come on and a
chime will sound when the ignition is in RUN and the
driver's seatbelt is buckled and the passenger's seatbelt
is unbuckled with the passenger airbag enabled.
Press the select button to acknowledge this message
and clear it from the DIC display.
CHANGE ENGINE OIL
This message is displayed when the engine oil needs to
be changed. SeeGM Oil Life Systempreviously in
this section for information on how to reset the message.
This message will clear itself after 10 seconds until
the next ignition cycle.
CHECK TIRE PRESSURE
If your vehicle is equipped with the tire pressure monitor
system, and a low tire pressure is detected in any of
the vehicle's tires, this message will appear on the DIC.
Press the select button, or reset stem, to acknowledge
the message and clear it from the DIC display. It
will appear at each ignition cycle until the tires are
in¯ated to the correct in¯ation pressure.
CHECK WASHER FLUID
If the washer ¯uid level is low, this message will appear
on the DIC. Adding washer ¯uid will clear the message.
Pressing the select button will acknowledge this
message and clear it from the DIC display. This
message will clear itself after 10 seconds until the next
ignition cycle.
CHECK OIL LEVEL
If the oil level in the vehicle is low, this message will
appear on the DIC. Check the oil level and correct it as
necessary. You may need to let the vehicle cool or
warm up and cycle the ignition to be sure this message
will clear. Once the problem is corrected, pressing
the select button will clear this message from the DIC
display. This message will clear itself after 10 seconds
until the next ignition cycle.
DRIVER DOOR AJAR
If the driver's door is not fully closed and the vehicle is
in a drive gear, this message will appear on the
display and you will hear a chime. Stop and turn off the
vehicle, check the door for obstacles, and close the
door again. Check to see if the message still appears on
the DIC. Pressing the select button will acknowledge
this message and clear it from the DIC display.
3-58

SERVICE AIR BAG
If there is a problem with the air bag system, this
message will be displayed on the DIC. Have a quali®ed
technician inspect the system for problems. Pressing
the select button will acknowledge this message
and clear it from the DIC display.
SERVICE BRAKE SYSTEM
If a problem occurs with the brake system, this message
will appear on the DIC. If this message appears, stop
as soon as possible and turn off the vehicle. Restart the
vehicle and check for the message on the DIC display.
If the message is still displayed, or appears again when
you begin driving, the brake system needs service.
SERVICE 4WD
If a problem occurs with the all-wheel drive system, this
message will appear on the DIC. If this message
appears, stop as soon as possible and turn off the
vehicle. Restart the vehicle and check for the message
on the DIC display. If the message is still displayed,
or appears again when you begin driving, the four wheel
drive system needs service.
SERVICE RIDE CONTROL
If a problem occurs with the suspension system, this
message will appear on the DIC. If this message
appears, stop and turn off the vehicle. Restart the
vehicle and check for the message on the DIC display.
If the message is still displayed, or appears again
when you begin driving, the suspension system needs
service.
SERVICE TIRE MONITOR
If your vehicle is equipped with the tire pressure monitor
system, this message will be displayed if any of the
tire monitor sensors have malfunctioned, or if all the tire
monitor sensors have not been programmed
successfully. Press the select button, or the reset stem,
to clear it from the display. The message will appear
at each ignition cycle until the system is serviced.
STABILITY SYS ACTIVE
You may see the STABILITY SYS ACTIVE message on
the DIC. It means that an advanced computer-controlled
system has come on to help your vehicle continue to
go in the direction in which you're steering.
Stabilitrak
žactivates when the computer senses that
your vehicle is just starting to spin, as it might if you hit
a patch of ice or other slippery spot on the road.
When the system activates, you may hear a noise or
feel a vibration in the brake pedal. This is normal.
3-61

The anti-lock system can change the brake pressure
faster than any driver could. The computer is
programmed to make the most of available tire and road
conditions. This can help you steer around the obstacle
while braking hard.
As you brake, your computer keeps receiving updates
on wheel speed and controls braking pressure
accordingly.Remember: Anti-lock does not change the time you
need to get your foot up to the brake pedal or always
decrease stopping distance. If you get too close to
the vehicle in front of you, you will not have time to apply
your brakes if that vehicle suddenly slows or stops.
Always leave enough room up ahead to stop, even
though you have anti-lock brakes.
Using Anti-Lock
Do not pump the brakes. Just hold the brake pedal
down ®rmly and let anti-lock work for you. You may feel
the brakes vibrate, or you may notice some noise,
but this is normal.
Braking in Emergencies
With anti-lock, you can steer and brake at the same
time. In many emergencies, steering can help you more
than even the very best braking.
4-8

Hydroplaning
Hydroplaning is dangerous. So much water can build up
under your tires that they can actually ride on the
water. This can happen if the road is wet enough and
you are going fast enough. When your vehicle is
hydroplaning, it has little or no contact with the road.
Hydroplaning does not happen often. But it can if your
tires do not have much tread or if the pressure in
one or more is low. It can happen if a lot of water is
standing on the road. If you can see re¯ections
from trees, telephone poles or other vehicles, and
raindrops ªdimpleº the water's surface, there could be
hydroplaning.
Hydroplaning usually happens at higher speeds. There
just is not a hard and fast rule about hydroplaning.
The best advice is to slow down when it is raining.
Driving Through Deep Standing Water
Notice:If you drive too quickly through deep
puddles or standing water, water can come in
through your engine's air intake and badly damage
your engine. Never drive through water that is
slightly lower than the underbody of your vehicle. If
you can not avoid deep puddles or standing
water, drive through them very slowly.
Driving Through Flowing Water
{CAUTION:
Flowing or rushing water creates strong forces.
If you try to drive through ¯owing water, as you
might at a low water crossing, your vehicle can
be carried away. As little as six inches of
¯owing water can carry away a smaller vehicle.
If this happens, you and other vehicle
occupants could drown. Do not ignore police
warning signs, and otherwise be very cautious
about trying to drive through ¯owing water.
Some Other Rainy Weather Tips
·Turn on your low-beam headlamps ± not just your
parking lamps ± to help make you more visible to
others.
·Besides slowing down, allow some extra following
distance. And be especially careful when you
pass another vehicle. Allow yourself more clear
room ahead, and be prepared to have your
view restricted by road spray.
·Have good tires with proper tread depth. SeeTires
on page 5-54
.
4-31

Once you are moving on the freeway, make certain you
allow a reasonable following distance. Expect to
move slightly slower at night.
When you want to leave the freeway, move to the
proper lane well in advance. If you miss your exit, do
not, under any circumstances, stop and back up. Drive
on to the next exit.
The exit ramp can be curved, sometimes quite sharply.
The exit speed is usually posted.
Reduce your speed according to your speedometer, not
to your sense of motion. After driving for any distance
at higher speeds, you may tend to think you are
going slower than you actually are.
Before Leaving on a Long Trip
Make sure you are ready. Try to be well rested. If you
must start when you are not fresh Ð such as after
a day's work Ð do not plan to make too many miles that
®rst part of the journey. Wear comfortable clothing
and shoes you can easily drive in.
Is your vehicle ready for a long trip? If you keep it
serviced and maintained, it is ready to go. If it needs
service, have it done before starting out. Of course, you
will ®nd experienced and able service experts in GM
dealerships all across North America. They will be ready
and willing to help if you need it.Here are some things you can check before a trip:
·Windshield Washer Fluid:Is the reservoir full? Are
all windows clean inside and outside?
·Wiper Blades:Are they in good shape?
·Fuel, Engine Oil, Other Fluids:Have you checked
all levels?
·Lamps:Are they all working? Are the lenses clean?
·Tires:They are vitally important to a safe,
trouble-free trip. Is the tread good enough for
long-distance driving? Are the tires all in¯ated to the
recommended pressure?
·Weather Forecasts:What is the weather outlook
along your route? Should you delay your trip a
short time to avoid a major storm system?
·Maps:Do you have up-to-date maps?
4-34

Tire and Loading Information Label
A. Vehicle Capacity WeightThe Tire and Loading Information label is attached to
the center pillar, near the driver's door latch. Vehicles
without a center pillar will have the Tire and Loading
Information label attached to the driver's door edge. This
label lists the number of people that can be in your
vehicle and the total weight it can carry. This weight is
called the vehicle capacity weight.
The Tire and Loading Information label also tells you
the size and recommended in¯ation pressure for
the original equipment tires on your vehicle. For more
information on tires and in¯ation see
Tires on page 5-54andIn¯ation - Tire Pressure on page 5-62.
If your vehicle does not have the Tire and Loading
Information label, the Certi®cation/Tire label shows the
tire size and recommended in¯ation pressures
needed to obtain the Gross Vehicle Weight Rating
(GVWR) and the Gross Axle Weight Rating (GAWR) for
the front and rear axles. See ªCerti®cation/Tire Labelº
later in this section.
4-45